DTC B1C53:13 [BCM]

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Malfunction Location

• Windshield wiper switch internal circuit malfunction

Detection Condition

• Windshield wiper switch INT circuit malfunction

Possible Causes

• Wiper and washer switch malfunction

• BCM malfunction

• Open circuit in wiring harness between windshield wiper and washer switch terminal E and BCM terminal 6S

System Wiring Diagram

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Diagnostic Procedure

Step

Inspection

Action

1

PERFORM DTC INSPECTION

•  Clear DTCs using the M-MDS.
(See CLEARING DTC [BCM].)

•  Turn the windshield wiper switch on.

•  Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)

•  Is DTC B1C53:13 displayed?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

VERIFY WINDSHIELD WIPER AND WASHER SWITCH CONNECTOR CONDITION

•  Disconnect the negative battery cable.

•  Disconnect the windshield wiper and washer switch connector.

•  Inspect the connection condition and wiring harness.

•  Are the connector terminals normal without damage, deformation, corrosion, or disconnection?

Yes

Go to the next step.

No

Repair or replace the connector, then go to the final step.

3

VERIFY BETWEEN WINDSHIELD WIPER AND WASHER SWITCH AND BCM FOR OPEN CIRCUIT

•  Inspect for continuity between windshield wiper and washer switch terminal E and BCM terminal 6S.

•  Is there continuity?

Yes

Go to the next step.

No

Repair or replace the related wiring harness, then go to the final step.

4

VERIFY WINDSHIELD WIPER AND WASHER SWITCH CONDITION

•  Inspect the windshield wiper and washer switch.
(See WINDSHIELD WIPER AND WASHER SWITCH INSPECTION.)

•  Is the windshield wiper and washer switch normal?

Yes

Go to the next step.

No

Replace the wiper and washer switch, then go to the final step.

(See WIPER AND WASHER SWITCH REMOVAL/INSTALLATION.)

5

VERIFY TROUBLESHOOTING COMPLETED

•  Clear DTCs using the M-MDS.
(See CLEARING DTC [BCM].)

•  Turn the windshield wiper switch on.

•  Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)

•  Is DTC B1C53:13 displayed?

Yes

Replace the BCM.

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

No

DTC troubleshooting completed.

Step	Inspection		Action
1	PERFORM DTC INSPECTION • Clear DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Turn the windshield wiper switch on. • Perform the BCM DTC inspection using the M-MDS. (See DTC INSPECTION [BCM].) • Is DTC B1C53:13 displayed?	Yes	Go to the next step.
1		No	DTC troubleshooting completed.
2	VERIFY WINDSHIELD WIPER AND WASHER SWITCH CONNECTOR CONDITION • Disconnect the negative battery cable. • Disconnect the windshield wiper and washer switch connector. • Inspect the connection condition and wiring harness. • Are the connector terminals normal without damage, deformation, corrosion, or disconnection?	Yes	Go to the next step.
2		No	Repair or replace the connector, then go to the final step.
3	VERIFY BETWEEN WINDSHIELD WIPER AND WASHER SWITCH AND BCM FOR OPEN CIRCUIT • Inspect for continuity between windshield wiper and washer switch terminal E and BCM terminal 6S. • Is there continuity?	Yes	Go to the next step.
3		No	Repair or replace the related wiring harness, then go to the final step.
4	VERIFY WINDSHIELD WIPER AND WASHER SWITCH CONDITION • Inspect the windshield wiper and washer switch. (See WINDSHIELD WIPER AND WASHER SWITCH INSPECTION.) • Is the windshield wiper and washer switch normal?	Yes	Go to the next step.
4		No	Replace the wiper and washer switch, then go to the final step. (See WIPER AND WASHER SWITCH REMOVAL/INSTALLATION.)
5	VERIFY TROUBLESHOOTING COMPLETED • Clear DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Turn the windshield wiper switch on. • Perform the BCM DTC inspection using the M-MDS. (See DTC INSPECTION [BCM].) • Is DTC B1C53:13 displayed?	Yes	Replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
5		No	DTC troubleshooting completed.